Water fluoridation and tooth decay in 5 year olds. Samples were unequal and too small.
Vemmer
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D002675:Child, Preschool; D003731:Dental Caries / Q000453:epidemiology* / Q000517:prevention & control; D005457:Fluoridation; D006801:Humans; D011204:Poverty Areas; D006113:United Kingdom / Q000453:epidemiology